CN117066966A - Processing method for quantifying and adjusting angle of curved surface joint tool allowance between She Huankong entirety - Google Patents
Processing method for quantifying and adjusting angle of curved surface joint tool allowance between She Huankong entirety Download PDFInfo
- Publication number
- CN117066966A CN117066966A CN202311339632.6A CN202311339632A CN117066966A CN 117066966 A CN117066966 A CN 117066966A CN 202311339632 A CN202311339632 A CN 202311339632A CN 117066966 A CN117066966 A CN 117066966A
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- blade
- allowance
- edge finder
- cutter
- machining
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- 238000003672 processing method Methods 0.000 title claims abstract description 7
- 238000003754 machining Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000013139 quantization Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
Abstract
The invention belongs to the technical field of machining, and particularly relates to a machining method for quantifying the allowance of a ring-shaped annular curved surface cutter and adjusting the angular direction of the annular curved surface cutter. The technical scheme of the invention is as follows: the method comprises the steps that a numerical control machine compiles a blade measurement program by using a 3D edge finder, the blade connecting allowance of blades of a whole blade ring is measured by the 3D edge finder, the blade basin and the blade back connecting allowance of the blades are obtained respectively, and an angle adjustment value is calculated; and correcting the machining program of the numerical control machine tool according to the angle adjustment value, and then carrying out subsequent machining. The processing method for quantifying the annular curved surface cutter-connecting allowance of the blisk and adjusting the angle can quantify the step difference of the cutter-connecting angle, calculate the angle-adjusting angle, ensure the cutter-connecting effect, control the step difference after processing within 0.015mm and meet the design requirement through vibration polishing.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a machining method for quantifying the allowance of a ring-shaped annular curved surface cutter and adjusting the angular direction of the annular curved surface cutter.
Background
The integral vane ring of the aero-engine comprises an inner ring, blades and an outer ring which are integrally formed, wherein the integral vane ring part is of a closed structure, and the profile processing of all the blades cannot be completed in one procedure. The conventional process method comprises the following steps: and after the half molded surface of the blade is processed, turning over and clamping for the second time, and finishing the butt joint processing of the other half molded surface of the blade in the next procedure. Due to the secondary clamping, angular deviation and clamping errors can occur, and ideal butt joint of the upper half part and the lower half part of the blade can not be completed according to the theoretical angular direction. After the parts are turned over, an operator is required to manually adjust the angle and determine the allowance according to experience in the process of butt joint processing, the skill requirement on the operator is high, the step difference is difficult to accurately sense manually, and the step difference after the butt joint processing can occur due to sensing errors. In order to ensure the machining precision requirement, a bench worker is usually required to carry out clamping repair treatment on the knife receiving step, and the bench worker has heavy work and is easy to produce waste due to the fact that the materials are difficult to machine.
Disclosure of Invention
The invention provides a processing method for quantifying the allowance of a blade connecting ring annular curved surface and adjusting the angle, which can quantify the step difference of a blade connecting ring annular curved surface and calculate the angle of the blade connecting ring annular curved surface, so as to ensure the blade connecting effect, and the step difference after processing can be controlled within 0.015mm and can meet the design requirement through vibration polishing.
The technical scheme of the invention is as follows:
the method comprises the steps that a numerical control machine compiles a blade measurement program by using a 3D edge finder, the blade connecting allowance of blades of a whole blade ring is measured by the 3D edge finder, the blade basin and the blade back connecting allowance of the blades are obtained respectively, and an angle adjustment value is calculated; and correcting the machining program of the numerical control machine tool according to the angle adjustment value, and then carrying out subsequent machining.
Further, the processing method for quantifying the allowance of the annular space curved surface joint cutter and adjusting the angle specifically comprises the following steps:
1) Programming a blade measurement program by using the 3D edge finder; an annular section is arranged at the equidistant position between the inner ring and the outer ring of the blisk, and the diameter of the annular section is D; performing model cutting on the annular section and the blades of the whole blade ring to obtain a theoretical section of the blades, and generating a blade measurement program by using the 3D edge finder according to the theoretical section;
2) Calibrating the 3D edge finder; contacting the 3D edge finder with a fixed part or component of the numerical control machine tool; a hand wheel is utilized to enable a spindle of the numerical control machine to move a certain distance, and a proportionality coefficient K, K=the moving distance of the machine/the dial pointer variation is determined according to the dial pointer variation of the 3D edge finder;
3) After finishing finish machining of the upper half part of the blade of the blisk, carrying out secondary clamping on the turnover surface of the blisk;
4) Rough machining is carried out on the lower half part of the blades of the blisk;
5) Semi-finishing a blade of the blisk;
6) Measuring the blade connecting allowance of the semi-finished blade through a 3D edge finder according to a blade measuring program; when the 3D edge finder measures the leaf basin, the dial pointer change amount is X A The cutter receiving allowance of the leaf basin is L A ，L A =K*X A The method comprises the steps of carrying out a first treatment on the surface of the The 3D edge finder measures She Beishi, and the change amount of the dial pointer is X B The blade-back blade-connecting allowance is L B ，L B =K*X B ；
7) Calculating an angular adjustment value beta; the calculation formula is as follows: CTAN (β) = (L) B -L A ）/（D/2）；
8) The machining program of the numerical control machine tool is corrected according to the angle adjustment value; correcting the angular value of the coordinate system according to the angular adjustment value by a machining program of the numerical control machine tool;
9) And carrying out subsequent processing.
The beneficial effects of the invention are as follows: the invention can quantify the step difference of the butt cutter, calculate the angle adjustment angle to ensure the cutter connecting effect, and the step difference after processing can be controlled within 0.015mm, thereby meeting the design requirement through vibration polishing. Reduces the workload and labor intensity of the bench workers and improves the production efficiency.
Drawings
FIG. 1 is a schematic view of a blisk configuration in annular cross section;
FIG. 2 is a schematic diagram of a measurement trajectory of a 3D edge finder;
FIG. 3 is a schematic view of blade overlap after semi-finishing;
in the figure: 1 is an annular section, 2 is a blade, 3 is a measuring track of a 3D edge finder, 4 is a leaf basin, and 5 is a leaf back.
Detailed Description
The processing method for quantifying the allowance of the curved surface joint knife and adjusting the angle direction of the whole She Huankong comprises the following steps:
1) Programming a blade measurement program by using the 3D edge finder;
as shown in fig. 1, an annular section 1 is provided at an equidistant position between the inner ring and the outer ring of the blisk, the diameter of the annular section 1 being d=800 mm; the annular section 1 and the blades 2 of the whole blade ring are subjected to model cutting to obtain a theoretical section of the blades 2; generating a blade measurement program by using a 3D edge finder according to the theoretical section, wherein a measurement track 3 of the 3D edge finder is shown in fig. 2, and the offset of the measurement track 3 of the 3D edge finder relative to the theoretical section is the ball head radius of the 3D edge finder;
2) Calibrating the 3D edge finder;
contacting the 3D edge finder with a fixed part or component of the numerical control machine tool; when the 3D edge finder is used, the indication change of the 3D edge finder is within 0.01mm by adjusting the compensation cutter length of the 3D edge finder;
a main shaft of the numerical control machine tool is moved by using a hand wheel to 0.01mm, the dial pointer variation of the 3D edge finder is 0.02mm, and the proportionality coefficient K=0.01/0.02=0.5;
3) After finishing finish machining of the upper half part of the blade of the blisk, carrying out secondary clamping on the turnover surface of the blisk;
4) Rough machining is carried out on the lower half part of the blades of the blisk, and the balance is 1mm on one side;
5) Semi-finishing a piece of leaf of the whole leaf ring using a procedure with a margin of 0.4 mm;
6) Measuring the blade connecting allowance of the semi-finished blade through a 3D edge finder according to a blade measuring program;
as shown in FIG. 3, when the 3D edge finder measures the leaf basin 4, the dial pointer variation is 0.7mm, and the cutter receiving allowance L of the leaf basin 4 A =0.5×0.7mm=0.35 mm; when the 3D edge finder measures the blade back 5, the dial pointer change amount is 1.3mm, and the blade receiving allowance L of the blade back 5 B =0.5*1.3mm =0.65mm；
7) Calculating an angular adjustment value beta;
CTAN（β）=（0.65-0.35）/（800/2），
yield β= 0.04297 °;
8) The machining program of the numerical control machine tool is corrected according to the angle adjustment value;
the machining program of the numerical control machine tool corrects the angular value of the coordinate system, and corrects 0.04297 DEG to the side of the blade back 5 so as to make the allowance on two sides uniform;
9) And carrying out subsequent processing.
Claims (2)
1. The processing method for quantifying the cutter-connecting allowance of the curved surface and adjusting the angle between the whole She Huankong is characterized in that a numerical control machine compiles a blade measuring program by utilizing a 3D edge finder, and the cutter-connecting allowance of the blades of the whole blade ring is measured by the 3D edge finder to respectively obtain the cutter-connecting allowance of the blade basin and the blade back of the blade, so as to calculate an angle adjusting value; and correcting the machining program of the numerical control machine tool according to the angle adjustment value, and then carrying out subsequent machining.
2. The method for processing the annular space curved surface cutter allowance quantization and angular adjustment of the blisk according to claim 1, which is characterized by comprising the following steps:
1) Programming a blade measurement program by using the 3D edge finder; an annular section is arranged at the equidistant position between the inner ring and the outer ring of the blisk, and the diameter of the annular section is D; performing model cutting on the annular section and the blades of the whole blade ring to obtain a theoretical section of the blades, and generating a blade measurement program by using the 3D edge finder according to the theoretical section;
2) Calibrating the 3D edge finder; contacting the 3D edge finder with a fixed part or component of the numerical control machine tool; a hand wheel is utilized to enable a spindle of the numerical control machine to move a certain distance, and a proportionality coefficient K, K=the moving distance of the machine/the dial pointer variation is determined according to the dial pointer variation of the 3D edge finder;
3) After finishing finish machining of the upper half part of the blade of the blisk, carrying out secondary clamping on the turnover surface of the blisk;
4) Rough machining is carried out on the lower half part of the blades of the blisk;
5) Semi-finishing a blade of the blisk;
6) Measuring the blade connecting allowance of the semi-finished blade through a 3D edge finder according to a blade measuring program; when the 3D edge finder measures the leaf basin, the dial pointer change amount is X A The cutter receiving allowance of the leaf basin is L A ，L A =K*X A The method comprises the steps of carrying out a first treatment on the surface of the The 3D edge finder measures She Beishi, and the change amount of the dial pointer is X B The blade-back blade-connecting allowance is L B ，L B =K*X B ；
7) Calculating an angular adjustment value beta; the calculation formula is as follows: CTAN (β) = (L) B -L A ）/（D/2）；
8) The machining program of the numerical control machine tool is corrected according to the angle adjustment value; correcting the angular value of the coordinate system according to the angular adjustment value by a machining program of the numerical control machine tool;
9) And carrying out subsequent processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311339632.6A CN117066966B (en) | 2023-10-17 | 2023-10-17 | Processing method for quantifying and adjusting angle of curved surface joint tool allowance between She Huankong entirety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311339632.6A CN117066966B (en) | 2023-10-17 | 2023-10-17 | Processing method for quantifying and adjusting angle of curved surface joint tool allowance between She Huankong entirety |
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| Publication Number | Publication Date |
|---|---|
| CN117066966A true CN117066966A (en) | 2023-11-17 |
| CN117066966B CN117066966B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311339632.6A Active CN117066966B (en) | 2023-10-17 | 2023-10-17 | Processing method for quantifying and adjusting angle of curved surface joint tool allowance between She Huankong entirety |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0816225A (en) * | 1994-04-27 | 1996-01-19 | Hitachi Ltd | Method and device for controlling robot mechanism |
| CN103537743A (en) * | 2013-10-05 | 2014-01-29 | 成都泛华航空仪表电器有限公司 | Multi-axis curved surface type numerically-controlled method for machining complicated curved surface part |
| CN110976976A (en) * | 2019-11-14 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Closed type blisk ring blade milling cutter connecting control method |
| CN113814673A (en) * | 2021-11-01 | 2021-12-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Geometric self-adaptive machining method for titanium alloy blisk welding part of large fan |
| CN115592467A (en) * | 2022-06-30 | 2023-01-13 | 苏州千机智能软件有限公司（Cn） | Blisk ring finish machining tool mark receiving control method and system based on-machine measurement |
| CN116852050A (en) * | 2023-08-04 | 2023-10-10 | 深圳市宇和创智科技有限公司 | Five-axis full-direct-drive bridge type gantry machining center and process for machining unmanned aerial vehicle rotary blades |
-
2023
- 2023-10-17 CN CN202311339632.6A patent/CN117066966B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0816225A (en) * | 1994-04-27 | 1996-01-19 | Hitachi Ltd | Method and device for controlling robot mechanism |
| CN103537743A (en) * | 2013-10-05 | 2014-01-29 | 成都泛华航空仪表电器有限公司 | Multi-axis curved surface type numerically-controlled method for machining complicated curved surface part |
| CN110976976A (en) * | 2019-11-14 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Closed type blisk ring blade milling cutter connecting control method |
| CN113814673A (en) * | 2021-11-01 | 2021-12-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Geometric self-adaptive machining method for titanium alloy blisk welding part of large fan |
| CN115592467A (en) * | 2022-06-30 | 2023-01-13 | 苏州千机智能软件有限公司（Cn） | Blisk ring finish machining tool mark receiving control method and system based on-machine measurement |
| CN116852050A (en) * | 2023-08-04 | 2023-10-10 | 深圳市宇和创智科技有限公司 | Five-axis full-direct-drive bridge type gantry machining center and process for machining unmanned aerial vehicle rotary blades |
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| CN117066966B (en) | 2023-12-15 |
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